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Maxell CR2025 Battery: A Comprehensive Analysis

Maxell CR2025 Battery: A Comprehensive Analysis

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Maxell CR2025 Battery: A Comprehensive Analysis

Introduction

The Maxell CR2025 battery is a small, coin-shaped lithium battery commonly used in various electronic devices, including watches, calculators, key fobs, and small medical devices. It is a popular choice due to its high energy density, long shelf life, and reliable performance. This article provides a comprehensive analysis of the Maxell CR2025 battery, examining its specifications, performance characteristics, and applications.

Specifications

• Battery Type: Lithium Manganese Dioxide (LiMnO2)
• Nominal Voltage: 3.0V
• Capacity: 165mAh
• Diameter: 20mm
• Height: 2.5mm
• Weight: 2.7g
• Shelf Life: Up to 10 years

Performance Characteristics

Voltage:

The Maxell CR2025 battery maintains a stable voltage output of approximately 3.0V throughout most of its discharge cycle. This consistent voltage ensures reliable performance for devices requiring a stable power supply.

Capacity:

With a capacity of 165mAh, the Maxell CR2025 battery provides a high energy density for its compact size. This capacity allows it to power small electronic devices for extended periods.

Discharge Rate:

The Maxell CR2025 battery exhibits a relatively low self-discharge rate, losing less than 2% of its capacity per year when stored at room temperature. This low self-discharge rate ensures a long shelf life and maintains the battery’s readiness for use.

Temperature Range:

The Maxell CR2025 battery operates effectively over a wide temperature range, from -30°C to +60°C. This versatility makes it suitable for use in various environments and applications.

Safety:

The Maxell CR2025 battery is designed with safety features to prevent overcharging, short circuits, and explosions. It incorporates a built-in safety vent to release pressure in case of excessive internal gas buildup.

Applications

The Maxell CR2025 battery finds application in a diverse range of electronic devices, including:

• Watches
• Calculators
• Key fobs
• Car remotes
• Medical devices (e.g., glucose meters, thermometers)
• Small sensors
• IoT devices

Advantages

• High Energy Density: Provides long-lasting power for small devices.
• Stable Voltage: Ensures reliable performance for voltage-sensitive devices.
• Low Self-Discharge: Maintains a high capacity over extended storage periods.
• Wide Temperature Range: Suitable for use in various environments.
• Safety Features: Protects against overcharging, short circuits, and explosions.

Disadvantages

• Limited Capacity: May not be suitable for devices with high power requirements.
• Non-Rechargeable: Cannot be recharged once depleted.
• Environmental Concerns: Lithium batteries require proper disposal due to their potential environmental impact.

Comparison with Other Batteries

The Maxell CR2025 battery compares favorably with other coin-shaped lithium batteries in the same size category. It offers a higher capacity than the CR2020 battery (160mAh) and a longer shelf life than the CR2032 battery (10 years).

Conclusion

The Maxell CR2025 battery is a reliable and efficient power source for a wide range of electronic devices. Its high energy density, stable voltage, low self-discharge rate, wide temperature range, and safety features make it an excellent choice for applications requiring a compact and long-lasting power supply. While its capacity may be limited for high-power devices and its non-rechargeable nature requires proper disposal, the Maxell CR2025 battery remains a trusted option for powering small electronic devices.

Closure

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